206 ZOOLOGISCHE MEDEDEELINGEN — DEEL III. 
Length of carapace in the median line. 28.5 27.— 26.75 24.— mm. 
Breadth of front. nee aa OM ES 
Posterior margin) of penultimate segment 9.75 11.5 115 — 
Length ’ of abdomen 5 5— 5—-— — 
Horizontal length of chela . . 1. . : 23. 205 Pio 
Height of palm. 0 200.0 CNRS a 
Length of meropodite —') 24.— 23.25 21.— , 
Breadth , 5 of penult- — 11.— 12.— 10.— , 
Length of carpo- + propodite } imate pair — 26.5 25.5 245 , 
Breadth of propodite of legs — “ 5,5 Soe eae 
Length of dactylus — 125 12.— 105 , 
N°. 1: typ. Ses. taeniolata, n°. 2 and 3 subsp. crebrestriata, n°. 4 
Ses. lafondi. We may observe. that in the subspecies the abdomen is 
much broader than in the typ. Ses. faemiolata. 
114. Sesarma (Holometopus) tampicensis Rathbun. 
1914. Sesarma (Holometopus) tampicense Rathbun. Proc. U. S. Nat. Mus., 
v. 47 p. 124, pl. 8 f. 1—3 — Tampico (Mexico). 
115. Sesarma (Sesarma s.s.) tetragona Fabricius. 
1798. Cancer tetragonus Fabricius. Suppl. Entom. Syst., p. 341 — East India. 
1799. Cancer fascicularis Herbst. Naturgesch. Krabben u. Krebse. Bd. 3 
Heft 1 p. 49, pl. 47 f. 5 — East India. 
1869. Sesarma fascicularis Hilgendorf. v. d. Decken’s Reisen in Ost-Afrika. 
Bd. 3.1., Crust., p. 91 — notes on Herbst’s specimen. 
1887. Sesarma tetragona de Man. Zool. Jahrb. Syst., Bd. 2 p. 646 and 
665, pl. 17 f. 1 — description of type-specimen of Fabricius. 
1900. Sesarma tetragonum? Alcock. Journ. As. Soc. Bengal, v. 69 prt. 2 
p. 420 — Ceylon, Madras, deltas of Mahanaddi and Ganges. 
nec Sesarma tetragona H. et A. Milne-Edwards, Hoffmann a. o. 
(= Ses. meinerti de Man). 
This exceedingly rare species is probably represented in the Musea 
by two specimens only, one, being the type-specimen of Fabricius, at 
Copenhagen, the other, that of Herbst, at Berlin! As Dr. de Man in- 
formed me, it appears very doubtful, whether Alcock’s specimens really 
1) The specimen had lost all the ambulatory legs, except the anterior pair. The lost pairs, 
however, are all regenerating and budding out again. This indicates a great tenacity of life and 
a regenerative power which appears most enviable to everybody, especially in the war times of _ 
these days! The animal must have emerged out of some animated scrimmage in a deplorable 
state and, though its comparative helplessness must have rendered it an easy prey to any pur- 
suer, it has managed up to the time of its caught to escape all dangers, 
